Britney backstage with one of her fans…LADY GAGA! The two partied before the show and had nothing but good thing to say about each other after the performance. Gaga even tweeted that “Britney’s dad gave us homemade BBQ, it was one of the best things I’ve ever eatin’ in my LIFE.”

During an online Q&A in December 2013, Spears told her fans, “I would do a duet with Lady Gaga. I think that would be a lot of fun. I think she’s very different and interesting and intricate.”